//服务器端程序 EchoServer.java
import java.io.*;
import java.net.*;
public class EchoServer {
private int port=8000;
private ServerSocket serverSocket;
public EchoServer() throws IOException {
serverSocket = new ServerSocket(port);
System.out.println("服务器启动");
}
public String echo(String msg) {
return "echo:" + msg;
}
private PrintWriter getWriter(Socket socket)throws IOException{
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut,true);
}
private BufferedReader getReader(Socket socket)throws IOException{
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}
public void service() {
while (true) {
Socket socket=null;
try {
socket = serverSocket.accept(); //等待客户连接
System.out.println("New connection accepted "
+socket.getInetAddress() + ":" +socket.getPort());
BufferedReader br =getReader(socket); //du qu
PrintWriter pw = getWriter(socket);
String msg = null;
while ((msg = br.readLine()) != null) {
System.out.println(msg);
pw.println("--------------这个是从服务器上传过来的数据--------------");
if (msg.equals("bye")) //如果客户发送的消息为“bye”,就结束通信
break;
}
}catch (IOException e) {
e.printStackTrace();
}finally {
try{
if(socket!=null)socket.close(); //断开连接
}catch (IOException e) {e.printStackTrace();}
}
}
}
public static void main(String args[])throws IOException {
new EchoServer().service();
}
}
//客户端程序 EchoClient.java
import java.net.*;
import java.io.*;
import java.util.*;
public class EchoClient {
private String host="localhost";
private int port=8000;
private Socket socket;
public EchoClient()throws IOException{
socket=new Socket(host,port);
}
public static void main(String args[])throws IOException{
new EchoClient().talk();
}
private PrintWriter getWriter(Socket socket)throws IOException{
OutputStream socketOut = socket.getOutputStream();
return new PrintWriter(socketOut,true);
}
private BufferedReader getReader(Socket socket)throws IOException{
InputStream socketIn = socket.getInputStream();
return new BufferedReader(new InputStreamReader(socketIn));
}
public void talk()throws IOException {
try{
BufferedReader br=getReader(socket);
PrintWriter pw=getWriter(socket);
BufferedReader localReader=new BufferedReader(new InputStreamReader(System.in));
String msg=null;
System.out.println("$$$$$$$$$$$$$$$$$$$");
while((msg=localReader.readLine())!=null){
pw.println(msg+"aaaaaaaaaaaaa"); // 传给服务器的数据
Thread.sleep(3000);
System.out.println("br.readLine()"+br.readLine()); //读取服务器的数据
if(msg.equals("bye"))
break;
}
}catch(Exception e){
e.printStackTrace();
}finally{
try{socket.close();}catch(IOException e){e.printStackTrace();}
}
}
}
/****************************************************
* 作者:孙卫琴 *
* 来源:<<Java网络编程精解>> *
* 技术支持网址:www.javathinker.org *
***************************************************/